Horizontal centrifugal separating-machine for lignin, cellulose, and the like.



PATENTED AUG. 25, P. PRIEM, HORIZONTAL OENTRIFUGAL SEPARATING MACHINE FOR LIGNIN,

OELLULOSE, AND THE LIKE.

APPLICATION F ILED JUNE l5 1908.

2 SHEETSSHEET l.

WITNESSES 11v VE/VTOITZ '4, g k/Lam No. 897,144. PATENTED AUG. 25, 1908.

P. PRIEM.

HORIZONTAL OENTRIFUGAL SEPARATING MACHINE FOR LIGNIN, OELLULGSE, AND THE LIKE.

APPLICATION FILED JUNE 15,1908.

2 SHEETS-SHEET 2 mm 8 Wm WH'NEss Es Efrem/10E ys Improvements Unrrnn sra'rns ATENT OFFI@E.

PAUL PRIEM, OF HEIDENHEIM-ON-THHBRENZ, GERMANY.

HORIZONTAL GENTRIFUGAL snrAna'rme-maomun FOB LIGNIN, CELLULOSE, AND THE ram.

No. sans- .24.

Specification of Letters Patent;

. Patented Aug. 25, 1908;

Application filed June 15, 190 8. Serial No. 438,616.

hofstrasse, Heidenheim-on-the-Brenz, Germany, have inventedcertain new and useful in Horizontal Centrifugal Separating-Machines for Lignin, Cellulose, and the Like; and I do hereby declare the following to be a full, clear, and exact descripltion of the invention.

T e present invention relates to a horizontal, centrifugal separating machine for lignin, cellulose and the like, in which water in which the li nin etc. is suspended is thrown against the sieve by a propeller revolving on a horizontal axis.

According to the invention water containing the materialis introduced into the propeller. in many separate, for the most part radially directed, jets, by a distributor projecting far into the interior of the propeller, the blades of which strike the jets and throw the liquid uniformly divided against the surrounding sieve.

In vertical centrifugals, distributers of this kind which project far into the interior of the propeller and through which the lignin suspension is fed to the. propeller in many separate jets have already been frequently employed. This arrangement however has not een employed heretofore in horizontal centrifugal se arating machines. Its use here was-not o vious, because it did not appear possible to distribute the water containing the material uniformly on all sides to the blades of the propeller. According to the present invention this diiliculty is overcome y arranging the orifices of the distributer with a view to the varying pressure of the li old at the various points in the distributor. 11 order that the'invention may be clearly understood, reference is made to the accompanying drawings in which two machines embodying my invention are represented by way of example, and in which:

Figures 1 and 2 are longitudinal and transverse sectional elevations respectively of one form of machine, while Fig. 3 is a longitudinal sectional elevation of another form, and Fig. eis a vertical transverse section through part of the latter form.

Referring to Fig. 1, the propeller b rotates with the axis a, and the distributor c projects into the propeller. :The screen or sieve d is held by the two end Walls 6 which are connected below by an intermediate member f and above by the transverse g. The exterior casing is formed b two easily removable lateral sheet metal walls It and a cover '5, the latter being capable of being opened at any; time.

The water carrying the material enters .atk into the distributer c and passes from this uniformly distributed on all sides to the propeller I) through numerous orifices l in jets which are for the most part ejected radially. By reason of their direction the jets are struck powerfully at right angles and the Water is thrown in a fine spray against the sieve g. The blow of the propeller a ainst -the jets separates such particles of ignin matter as may still adhere together.

The se arated material which is thrown through the sieve d collects in the connecting member f and flows away at the' outlet m. The coarse material which remains in the sieve rotates with the propeller and is thrown out by its slanting blades through the opening a which may be arranged in any suitable position in the end wall, even at the top.

The working zone 0, beyond the inner end of the distributer 0, serves for removing water from the coarse material and can also be used for separating the water containing the material by arranging walls g on the propeller i) which deflect the liquid to this portion of the propeller as is indicated in Fig. i.

In the machine according to Figs. 1 and 2 the distributer c is arranged on the axis of the propeller. This construction is the-most favorable for distributing the water. In Figs. 3 and 4, however the distributer is ariarigcrl at one side above the shaft a, so that it is possible to provide a good journal for the latter and the length of the machine is diminished. In this construction guidewalls r (Fig. 4) can be projected below the distributor to guide the jets of water to the propeller-blades. v

In the construction Figs. 1 and2 the orifices l are arranged regularly in the surface of the distributer c. l n order to distribute the water uniformly in all directions, the orifices must therefore have a Width which varies. in the inverse proportion of the hyd rostatic pressure which exists at the various levels of the orifices. in the construction Figs. 3 and 4, on the contrary, the orifices of the distributor are of uniform size but are arranged non-uniformly numerically, there being, as is seen in cross-section in Fig. 4, five orifices in the top of the distributor and only four in the bottom.

I claim as my invention:

1. In a centrifugal separating machine of the character described, a propeller rotating on a horizontal axis, and a stationary distributcr arranged within the blades of the propeller and adapted to feed a suspension to said blades in radially directed jets, substantially as described. 5

2. Ina centrifugal" separating machine of the character described, a propeller rotating on a horizontal axis and a stationary distributer arranged within the blades of the pro- 15 peller and adapted to feed a suspensionto the latter in uniform quantity on all sides I simultaneously, substantially as described. In testimony whereof I have signed my name to this specification, in the presence of 20 two subscribing witnesses.

- PAUL lRIEM.

Witnesses EMiL GIERSBERG, JOIIANN BAPTIST LOSSMANN. 

